Balancing alloy wheels, max weight query

[The Stiglet]

My 5 series was accidentally curbed by the dealer recently. It was repaired at the weekend but they needed to put 80 grams of weight to rebalance the wheel after being filled.

The damage wasn't that bad in the scheme of things (compared to some cars I see) but as most of my wheels have about 50 grams on them I did wonder if there was a theoretical maximum weight limit before the wheel is written off?

My alloys are 19" M light alloy wheels Double-spoke 351 M.

Any thoughts?

[The Stiglet]

Thanks guys